D-1 Coliseum No Heat, but have flow, Newly replaced Apollo pump elminated the Flo1 issue, but now no heat. Everything I read mentions resetting the Hi-Temp, but HOW? I've unplugged the wires from the circuit board and replugged them back in, but have now been told that this is not "resetting". Any ideas on where/what to look for?

There is no hi-limit reset on that system. refer to your other post that I responded to.

Just found out that this model does not have a reset switch' but that you are to make sure the heat is below 110 degrees and then press the DOWN arrow on the keypad and that is suppose to reset the hi-limit switch. Didn't do anything to solve the no heat issue - but did want to pass this along.